Dynamics of Pair Correlations in the Attractive Lieb-Liniger Gas

Dominik Muth and Michael Fleischhauer
Phys. Rev. Lett. 105, 150403 – Published 6 October 2010

Abstract

We investigate the dynamics of a one-dimensional Bose gas after a quench from the Tonks-Girardeau regime to the regime of strong attractive interactions applying analytical techniques and numerical simulations. After the quench the system is found to be predominantly in an excited gaslike state, the so-called super-Tonks gas, however with a small coherent admixture of two-particle bound states. Despite its small amplitude, the latter leads to a pronounced oscillation of the local density correlation with a frequency corresponding to the binding energy of the pair. Contributions from bound states with larger particle numbers are found to be negligible.

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  • Received 28 June 2010

DOI:https://doi.org/10.1103/PhysRevLett.105.150403

© 2010 The American Physical Society

Authors & Affiliations

Dominik Muth* and Michael Fleischhauer

  • Fachbereich Physik und Forschungszentrum OPTIMAS, Technische Universität Kaiserslautern, D-67663 Kaiserslautern, Germany

  • *muth@physik.uni-kl.de

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Issue

Vol. 105, Iss. 15 — 8 October 2010

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